2. Materials and methods
2.1
Sampling sites and sediment collection
In June 2022, 15-cm-thickness surface sediment samples were collected
using a Peterson grab sampler from the center location of Shangjinhu
Lake (114º11′31″N, 30º38′22″E), one sub-lake of Jinyinhu Lake, located
in Wuhan, China. Then, the collected samples were immediately
transported to the laboratory for preservation. A portion of the
sediment samples were used for the determination of physicochemical
properties. The remaining sediment
samples were filtered with a sieve to remove large dinas and residues of
animals and plants for subsequent planting experiments. The contents of
organic matter (OM), total nitrogen (TN), and total phosphorus (TP) in
the sediments in Shangjinhu Lake were 77.50 g kg-1,
3.13 g kg-1, and 0.82 g kg-1,
respectively.